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Spectacular ice caves you can visit year-round

Mark Lebetikin, TheActiveTimes.com
8:07 a.m. EDT April 1, 2014

Ice caves are not strictly a winter-only phenomenon -- you just have to go to the right place. Here are 10 ice caves you can visit even when the mercury starts rising again. Mendenhall Glacier, Juneau, Alaska: These incredible caves are constantly on the move as the glacier inches towards Mendenhall Lake and changes shape along the way. The best way to access them is from the West Glacier Trail with the help of a guide. Above and Beyond Alaska leads hikes to the crevasses and caves of Mendenhall Glacier, and provides crampons and mountaineering gear. Flickr/AER Wilmington DE

Big Four Ice Caves, Washington: One of the most popular attractions in Mount Baker-Snoqualmie National Forest, and only a short drive from Seattle, these caves are formed in a perennial pile of avalanche debris on the north face of Big Four Mountain which is kept from melting by the mountain's shadow. Streams formed by the summer melt carve the caves out of the ice. Photos like this may make entering them seem enticing, but be warned: the caves are unstable and two people have been killed by falling ice there in recent years. Flickr/Michael Matti

Mer de Glace, Chamonix, France: The largest glacier in France, the Mer de Glace lies on the slopes of Mont Blanc, Western Europe's highest mountain. An "ice grotto," complete with caves and ice sculptures, is carved out every year to allow visitors inside the glacier. Flickr/cmozz

Fox Glacier, New Zealand: This glacier, in Westland National Park on New Zealand's South Island, actually ends in a temperate rainforest, making it very easy to visit. You can hike right up to the edge, but to see the ever-changing formations and ice caves of its interior, your best bet would be a "helihike" by Fox Glacier Guides, which takes you to a remote site on the glacier via helicopter. Flickr/anoldent

Eisriesenwelt, Austria: Thought to be the largest network of ice caves in the world, this underground cavern in the Austrian Alps translates as "world of ice giants" because of its huge size -- around 30 miles -- and the eerie formations that fill its "rooms." Flickr/Inspiration Point Studio

Bandera Volcano, New Mexico: The show "Breaking Bad" may have made Albuquerque synonymous with "blue ice," but a short drive west on I-40 can take you to a place where a different hue prevails. At Bandera Volcano in El Malpais National Monument, a 20-foot-thick layer of bright green ice lies at the bottom of a collapsed lava tube. Because the basalt walls insulate the cave even in the searing New Mexico summer, the temperature never gets above 32 degrees and water that flows into the cave freezes -- with a layer of green algae on top. Flickr/sevfitzgerald

Kangerlussuaq, Greenland: This tiny town in western Greenland is so close to the island's massive ice sheet -- the second largest in the world after Antarctica's -- that you can actually drive to its edge. Caves formed by the summer melt abound here, and can be accessed with the help of tour operators. World of Greenland Arctic Circle offers two-day overnights on the ice cap, and Arctic Caving Adventure can take you deep in the tunnels and shafts formed by meltwater. Flickr/Visit Greenland

Los Glaciares National Park, Argentina: The third-largest ice cap in the world is in Patagonia, feeding dozens of glaciers in this national park. One of the best places to explore is Viedma Glacier, which flows into Viedma Lake near Mount Fitz Roy. Patagonia Aventura offers an "Ice Trek" tour on, and into, the deep blue ice. Flickr/fylin

Dobšinská Ice Cave, Slovakia: A tourist attraction since the 1800s, this UNESCO World Heritage site in Slovak Karst country is filled with columns, domes and stalagmites, all made of ice. Open to visitors from May through September, temperatures in the nearly mile-long cave can get down to the 20s Fahrenheit, so bring a jacket. Flickr/Roland_78

Wrangell-St. Elias National Park, Alaska: Juneau isn't the only place in Alaska with awe-inspiring glacial caves. Glaciers cover over 5,000 square miles of this park (which is the largest in the United States), and two of the most accessible are Root Glacier and Kennicott Glacier, both near the abandoned mining town of Kennecott. Operators leading tours into the caves include Alaska Denali Travel and St. Elias Alpine Guides. Flickr/thor_mark

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Big Four Ice Caves, Washington: One of the most popular attractions in Mount Baker-Snoqualmie National Forest, and only a short drive from Seattle, these caves are formed in a perennial pile of avalanche debris on the north face of Big Four Mountain which is kept from melting by the mountain's shadow. Streams formed by the summer melt carve the caves out of the ice. Photos like this may make entering them seem enticing, but be warned: the caves are unstable and two people have been killed by falling ice there in recent years.(Photo: Flickr/Michael Matti)

Last month images of the ice caves on Lake Superior went viral. The lake had frozen over to its greatest extent in decades, and for the first time in five years the sea caves of Apostle Islands National Lakeshore near Bayfield, Wis., became accessible by foot.

Normally a paddling destination in summer, the caves have gotten a winter makeover, complete with elaborate ice formations and chandelier-like arrangements of stalactites.

For sightseers and local businesses alike, this rare site has put a silver lining on an especially punishing winter. By one recent count, 88,000 people have trekked across the frozen lake to see the caves, compared to the 148,000 people who visited Apostle Islands in all of 2013.

But barring a last-minute vacation to Wisconsin, most of us won't get a chance to see the caves in person before the lake ice breaks up.

Never to worry: Ice caves are not strictly a winter-only phenomenon -- you just have to go to the right place.

Many of the most spectacular examples are in glaciers, formed as summer meltwater widens openings in these ever-shifting rivers of ice. Deep blue glacial ice can cause the light filtering through to bathe everything inside in a spectral glow.

Others are actual caves where, by some geological fluke, the temperature remains below freezing year-round, so that water seeping in accumulates into incredible frozen formations.

We did the research and came up with ten ice caves you can visit even when the mercury starts rising again. That way you won't have to wait till Hell -- er, Lake Superior -- freezes over again to snap photos that'll make your Wisconsin friends jealous.

These incredible caves are constantly on the move as the glacier inches towards Mendenhall Lake and changes shape along the way. The best way to access them is from the West Glacier Trail with the help of a guide. Above and Beyond Alaska leads hikes to the crevasses and caves of Mendenhall Glacier, and provides crampons and mountaineering gear.

Big Four Ice Caves, Washington

One of the most popular attractions in Mount Baker-Snoqualmie National Forest, and only a short drive from Seattle, these caves are formed in a perennial pile of avalanche debris on the north face of Big Four Mountain which is kept from melting by the mountain's shadow. Streams formed by the summer melt carve the caves out of the ice. Photos like this may make entering them seem enticing, but be warned: the caves are unstable and two people have been killed by falling ice there in recent years.

Mer de Glace, Chamonix, France

The largest glacier in France, the Mer de Glace lies on the slopes of Mont Blanc, Western Europe's highest mountain. An "ice grotto," complete with caves and ice sculptures, is carved out every year to allow visitors inside the glacier.

This glacier, in Westland National Park on New Zealand's South Island, actually ends in a temperate rainforest, making it very easy to visit. You can hike right up to the edge, but to see the ever-changing formations and ice caves of its interior, your best bet would be a "helihike" by Fox Glacier Guides, which takes you to a remote site on the glacier via helicopter.

Eisriesenwelt, Austria

Thought to be the largest network of ice caves in the world, this underground cavern in the Austrian Alps translates as "world of ice giants" because of its huge size -- around 30 miles -- and the eerie formations that fill its "rooms."

Bandera Volcano, New Mexico

The show Breaking Bad may have made Albuquerque synonymous with "blue ice," but a short drive west on I-40 can take you to a place where a different hue prevails. At Bandera Volcano in El Malpais National Monument, a 20-foot-thick layer of bright green ice lies at the bottom of a collapsed lava tube. Because the basalt walls insulate the cave even in the searing New Mexico summer, the temperature never gets above 32 degrees and water that flows into the cave freezes -- with a layer of green algae on top.

This tiny town in western Greenland is so close to the island's massive ice sheet -- the second largest in the world after Antarctica's -- that you can actually drive to its edge. Caves formed by the summer melt abound here, and can be accessed with the help of tour operators. World of Greenland Arctic Circle offers two-day overnights on the ice cap, and Arctic Caving Adventure can take you deep in the tunnels and shafts formed by meltwater.

Los Glaciares National Park, Argentina

The third-largest ice cap in the world is in Patagonia, feeding dozens of glaciers in this national park. One of the best places to explore is Viedma Glacier, which flows into Viedma Lake near Mount Fitz Roy. Patagonia Aventura offers an "Ice Trek" tour on, and into, the deep blue ice.

Dobšinská Ice Cave, Slovakia

A tourist attraction since the 1800s, this UNESCO World Heritage site in Slovak Karst country is filled with columns, domes and stalagmites, all made of ice. Open to visitors from May through September, temperatures in the nearly mile-long cave can get down to the 20s Fahrenheit, so bring a jacket.

Wrangell-St. Elias National Park, Alaska

Juneau isn't the only place in Alaska with awe-inspiring glacial caves. Glaciers cover over 5,000 square miles of this park (which is the largest in the United States), and two of the most accessible are Root Glacier and Kennicott Glacier, both near the abandoned mining town of Kennecott. Operators leading tours into the caves include Alaska Denali Travel and St. Elias Alpine Guides.